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    29 Products

    Ultra-High-Temperature Ceramic Washers

    Image of Product. Front orientation. Washers. Ultra-High-Temperature Ceramic Washers.
    Our most heat-resistant washers, even at blistering temperatures up to 3000° F. They distribute pressure evenly under nuts and screws in industrial furnaces, kilns, and other extreme-temperature environments. Ceramic may crack or dent if subjected to hard bumps, however, so these washers are not recommended for high-vibration applications.
    Temp.
    Range
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.,
    ° F
    Specs. Met
    Color
    Each
    No. 0
    0.068"0.188"0.022" to 0.028"Not Rated3,000Off-White00000000000000
    No. 2
    0.094"0.250"0.028" to 0.036"Not Rated3,000Off-White0000000000000
    No. 4
    0.125"0.375"0.036" to 0.045"Not Rated3,000Off-White0000000000000
    No. 5
    0.141"0.406"0.036" to 0.045"Not Rated3,000Off-White0000000000000
    No. 6
    0.156"0.438"0.036" to 0.045"Not Rated3,000Off-White0000000000000
    No. 8
    0.188"0.500"0.036" to 0.045"Not Rated3,000Off-White0000000000000
    No. 10
    0.203"0.562"0.036" to 0.045"Not Rated3,000Off-White0000000000000
    No. 12
    0.234"0.625"0.056" to 0.071"Not Rated3,000Off-White0000000000000
    1/4"
    0.281"0.734"0.056" to 0.071"Not Rated3,000Off-White0000000000000
    5/16"
    0.344"0.875"0.056" to 0.071"Not Rated3,000Off-White0000000000000
    3/8"
    0.406"1.000"0.056" to 0.071"Not Rated3,000Off-White0000000000000
    7/16"
    0.469"1.125"0.056" to 0.071"Not Rated3,000Off-White0000000000000
    1/2"
    0.531"1.250"0.090" to 0.112"Not Rated3,000Off-White0000000000000
    9/16"
    0.594"1.469"0.090" to 0.112"Not Rated3,000Off-White0000000000000
    5/8"
    0.656"1.750"0.090" to 0.112"Not Rated3,000Off-White0000000000000
    3/4"
    0.812"2.000"0.090" to 0.112"Not Rated3,000Off-White00000000000000
    7/8"
    0.938"2.250"0.146" to 0.174"Not Rated3,000ASME B18.21.1Off-White00000000000000
    1"
    1.062"2.500"0.146" to 0.174"Not Rated3,000ASME B18.21.1Off-White00000000000000
    M2
    2.6 mm6.0 mm0.6 mm to 0.9 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M3
    3.6 mm10.0 mm0.8 mm to 1.2 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M4
    4.8 mm12.0 mm1.0 mm to 1.4 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M5
    5.6 mm15.0 mm1.2 mm to 1.8 mmNot Rated3,000Off-White0000000000000
    M6
    6.8 mm18.8 mm1.2 mm to 1.8 mmNot Rated3,000Off-White0000000000000
    M8
    9.0 mm25.4 mm1.6 mm to 2.3 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M10
    11.0 mm28.0 mm2.0 mm to 2.8 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M12
    13.4 mm34.0 mm2.5 mm to 3.5 mmNot Rated3,000ASME B18.22MOff-White0000000000000
    M14
    15.4 mm39.0 mm2.5 mm to 3.5 mmNot Rated3,000ASME B18.22MOff-White00000000000000
    M16
    17.4 mm44.0 mm3.0 mm to 4.0 mmNot Rated3,000ASME B18.22MOff-White00000000000000
    M20
    22.0 mm50.0 mm3.5 mm to 4.6 mmNot Rated3,000ASME B18.22MOff-White00000000000000
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